The hex color #3e15c8 is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#C1EA37. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#7148FB, and Hex
#0B0095 is the 20% darker color. If the color is saturated by 10%, you get
#3B0ED3. If the color is desaturated by 10%, the color
#411CBD is obtained.